I've tested the game. its pretty cool .you can be one of bens 10 aliens (with cannon bolt replacing alien x in the end of the game you transform to it and ditroy vilgaxs ship) and Ship while going to other planets. you go to vulpin(wild mutts planet)terradino(humongausars planet)Anur Phaetos(ghost freaks planet) and much more. we also fight charmcaster-albedo-D void-MR smoothy and etc. check http://www.youtube.com/watch?v=J9V2kZrsF9A
for more info. you can also serch youtube.com for gameplays.